CN211312247U - Prestressed steel strand reinforcing device additionally arranged in hollow plate hinge joint space - Google Patents
Prestressed steel strand reinforcing device additionally arranged in hollow plate hinge joint space Download PDFInfo
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- CN211312247U CN211312247U CN201921643602.3U CN201921643602U CN211312247U CN 211312247 U CN211312247 U CN 211312247U CN 201921643602 U CN201921643602 U CN 201921643602U CN 211312247 U CN211312247 U CN 211312247U
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Abstract
The utility model discloses a prestressed steel strand reinforcing device additionally arranged in a hollow plate hinge joint space, which comprises hollow plates and hollow plate hinge joints, wherein the hollow plate hinge joint is arranged between the two hollow plates, hinge joint stirrups are uniformly arranged in the hollow plate hinge joints, and hinge joint longitudinal reinforcements are arranged at the inner sides of the hinge joint stirrups; an embedded corrugated pipe is also arranged in the hinge joint of the hollow plate, and one end of the embedded corrugated pipe is provided with an anchor steel bar; the surface of the hollow slab is provided with the anchoring area, the bottom surface of the hollow slab is provided with the steering block, the steel strand penetrates through the pre-buried corrugated pipe, the reinforcing device and the reinforcing method fully utilize the hinge joint space to add the pre-stressed steel strand to reinforce the hollow slab beam, the longitudinal bending resistance and the transverse integral stress performance of the hollow slab beam bridge can be improved, the disease hidden danger of the traditional hinge joint cracking and failure can be eliminated, the management and maintenance cost during the later period of operation is reduced, and the technical, economic and social benefits are greater.
Description
Technical Field
The utility model relates to an utilize hollow plate hinge joint to carry out the device of processing to hollow plate, specificly relate to one kind and utilize hollow plate hinge joint space to add prestressing force steel strand wires reinforcing apparatus, belong to bridge engineering maintenance and reinforcement field.
Background
The hollow slab bridge has the advantages of simple structure, convenient construction, economic material, high construction speed, small building height, easy realization of standardization and industrial production and the like, and is widely applied to modern highway bridges. The design load standard of the hollow slab bridge constructed in the early stage is generally low, along with the rapid development of traffic construction, the load grade of a vehicle is beyond the bearing range of the bridge, and due to the lack of effective maintenance, the hollow slab bridge has a lot of diseases, the hinge joint of part of the hollow slab bridge is obviously damaged, the shearing force transmission effect is poor, the single slab stress during the driving load action is caused, and the driving safety and the service life of bridges and culverts are influenced.
At present, for the reinforcement technology of the hollow slab hinge joint, a steel beam is arranged at the bottom of a slab of a hollow slab beam bridge in some schemes, and prestressed tendons are stretched at the bottom of the slab of the hollow slab beam bridge in some schemes. Therefore, in the existing technology for reinforcing the hollow slab beam bridge, because no interaction exists between the hollow slabs, the phenomenon of single slab stress cannot be eliminated to a great extent, and the reinforcing efficiency is low.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current problem, provide an utilize hollow plate hinge joint space to add prestressing force steel strand wires reinforcing apparatus.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a prestressed steel strand reinforcing device additionally arranged in a hollow plate hinge joint space, which comprises hollow plates and hollow plate hinge joints, wherein the hollow plate hinge joints are arranged between the adjacent hollow plates, hinge joint stirrups are uniformly arranged in the hollow plate hinge joints, and hinge joint longitudinal reinforcements are arranged on the inner sides of the hinge joint stirrups; an embedded corrugated pipe is further arranged inside the hinge joint of the hollow plate, and one end of the embedded corrugated pipe is provided with an anchor steel bar; the surface of the hollow plate hinge joint is provided with an anchoring area, the bottom surface of the hollow plate hinge joint is provided with a steering block, and the steel strand penetrates through the embedded corrugated pipe.
As the utility model discloses an optimal technical scheme, the surface of hollow core slab still is equipped with the bridge deck pavement, inside bridge deck pavement vertical reinforcement and the bridge deck pavement horizontal reinforcement of being equipped with of bridge deck pavement.
As an optimized technical scheme of the utility model, the hinge joint stirrup is in hollow plate hinge joint is inside according to 10-12cm interval distribution, the longitudinal reinforcement of hinge joint is in hinge joint stirrup annular inboard base and quartering point position set up.
As an optimized technical proposal of the utility model, the diameter of the hinge joint stirrup and the hinge joint longitudinal steel bar is 12-16 mm.
As an optimal technical scheme of the utility model, hollow plate hinge joint is fixed through hinge joint concrete placement after accomplishing the rigidity to hinge joint stirrup, hinge joint longitudinal reinforcement, pre-buried bellows, anchor district and turn to the piece.
As an optimal technical scheme of the utility model, hollow plate hinge joint needs hollow plate hinge joint template to carry out assistance-localization real-time to hinge joint concrete when fixed through hinge joint concrete.
As an optimal technical scheme of the utility model, the hinge joint concrete reaches 80% at intensity and demolishs hollow plate hinge joint template, the hinge joint concrete reaches 100% back at intensity, steel strand wires pass pre-buried bellows.
As an optimized technical scheme of the utility model, hollow core slab both ends are equipped with the hollow core slab and chisel the part.
A method for reinforcing a prestressed steel strand by utilizing a hollow plate hinge joint space comprises the following steps:
the method comprises the steps of firstly, removing bridge deck pavement and hollow slab hinge joints on the surface of an original hollow slab, chiseling concrete on a web part of the hollow slab to enable the web to be a vertical surface, chiseling the surface of the concrete of the hollow slab, wherein the transverse width range of the chiseled hollow slab hinge joints is 20-40 cm.
And secondly, arranging hinge joint stirrups at intervals of 10-12cm in the longitudinal direction in the hinge joint of the hollow plate, wherein the diameter of each hinge joint stirrup is 12-16mm, arranging hinge joint longitudinal steel bars at the bottom edge and the quartering position of the annular inner side of each hinge joint stirrup, the diameter of each hinge joint longitudinal steel bar is 12-16mm, and reserving a prestressed pipeline, arranging an anchoring area, an anchoring steel bar and a steering block.
And thirdly, installing a template of the hollow plate hinge joint, pouring hinge joint concrete, dismantling the template after the concrete strength reaches 80%, penetrating a prestressed steel strand into a reserved pipeline after the concrete strength reaches 100%, simultaneously tensioning two ends by using a jack, and fixing the prestressed steel strand in the hollow plate hinge joint by using an anchorage device.
And thirdly, laying the bridge deck pavement longitudinal steel bars and the bridge deck transverse steel bars again, binding the hinge joint stirrups and the bridge deck longitudinal steel bars together, arranging the templates, pouring bridge deck concrete, and removing the templates after the concrete strength reaches 80% to finish the reinforcing construction of the hollow slab beam bridge.
The utility model discloses the beneficial effect who reaches is: the prestressed steel twisted wire is additionally arranged in the hinge joint space to reinforce the hollow slab beam, so that the longitudinal bending resistance and the transverse integral stress performance of the hollow slab beam bridge can be improved, the hidden danger of the traditional hinge joint cracking and failure can be eliminated, the management and maintenance cost during later operation is reduced, and the method has great technical, economic and social benefits.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the original bridge deck pavement and hinge joint chiseling of the present invention;
FIG. 2 is a sectional view of the hollow core slab with concrete removed;
FIG. 3 is a schematic cross-sectional view of the hinge joint and the bridge deck pavement steel bar of the present invention;
FIG. 4 is a schematic view of a steel strand according to the present invention;
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1
As shown in fig. 1-4, the utility model provides a utilize hollow slab hinge joint space to add prestressing force stranded wire reinforcing apparatus, including hollow slab 1 and hollow slab hinge joint 12, be equipped with hollow slab hinge joint 12 between the adjacent hollow slab 1, the inside of hollow slab hinge joint 12 evenly is equipped with hinge joint stirrup 10, the inboard of hinge joint stirrup 10 is equipped with hinge joint longitudinal reinforcement 11; an embedded corrugated pipe 4 is also arranged in the hollow plate hinge joint 12, and one end of the embedded corrugated pipe 4 is provided with an anchor steel bar 5; the surface of the hollow plate hinge joint 12 is provided with the anchoring area 2, the bottom surface of the hollow plate hinge joint 12 is provided with the steering block 3, the steel strand 6 penetrates through the pre-embedded corrugated pipe 4, the reinforcing device and the reinforcing method fully utilize the hinge joint space to add the prestressed steel strand to reinforce the hollow plate girder, the longitudinal bending resistance and the transverse integral stress performance of the hollow plate girder bridge can be improved, the hidden danger of the traditional hinge joint cracking and failure can be eliminated, the management and maintenance cost during later-period operation is reduced, and the technical, economic and social benefits are greater.
The surface of hollow core slab 1 still is equipped with bridge deck pavement 9, and 9 inside longitudinal reinforcement 7 and the horizontal reinforcing bar 8 of bridge deck pavement that are equipped with of bridge deck pavement, and bridge deck pavement 9 can protect hollow core slab 1, and inside longitudinal reinforcement 7 and the horizontal reinforcing bar 8 of bridge deck pavement can make 9 overall structure of bridge deck pavement stable.
The hinge joint stirrups 10 are distributed in the hollow plate hinge joint 12 at intervals of 10-12cm, the hinge joint longitudinal reinforcements 11 are arranged at the bottom edge and the quartering positions of the annular inner side of the hinge joint stirrups 10, the hinge joint stirrups 10 and the hinge joint longitudinal reinforcements 11 are uniformly distributed in the hollow plate hinge joint 12, and the hollow plate hinge joint 12 can improve the longitudinal bending resistance and the transverse integral stress performance when stressed, so that the hollow plate hinge joint 12 cannot be easily cracked or directly damaged, the stability of the whole hollow plate beam bridge is improved, and the service life of the bridge is ensured.
The diameters of the hinge joint stirrups 10 and the hinge joint longitudinal steel bars 11 are both 12-16mm, and the large-diameter steel bars can improve the longitudinal bending resistance and the transverse integral stress performance of the hollow slab girder bridge.
Hollow slab hinge joint 12 is accomplishing to hinge joint stirrup 10, the longitudinal reinforcement 11 of hinge joint, pre-buried bellows 4, it is fixed that the anchor district 2 and turn to the fixed back of position of piece 3 are poured through hinge joint concrete, the hinge joint concrete can be pour hollow slab hinge joint 12, thereby make adjacent hollow slab 1 become a whole, and hollow slab hinge joint 12 is inside to add the prestressing force stranded wire and consolidate hollow slab beam, can improve vertical bending resistance and the horizontal whole atress performance of hollow slab beam bridge, can eliminate the disease hidden danger of traditional hinge joint fracture and inefficacy, reduce the management and maintenance cost during the later stage operation.
When the hollow plate hinge joint 12 is fixed through the hinge joint concrete, the hinge joint concrete needs to be positioned in an auxiliary mode through the hollow plate hinge joint template, the hollow plate hinge joint template can be used for positioning the hollow plate hinge joint, the hinge joint concrete can be filled into the hollow plate hinge joint 12, the hinge joint concrete cannot be wasted, and the resource waste is reduced.
The hollow plate hinge joint template is dismantled when the strength of the hinge joint concrete reaches 80%, after the strength of the hinge joint concrete reaches 100%, the steel strands 6 penetrate through the embedded corrugated pipe 4, the hollow plate hinge joint template is dismantled when the strength of the hinge joint concrete reaches 80%, the hollow plate hinge joint template cannot be directly adhered to the surface of the hinge joint concrete, the hollow plate hinge joint template is convenient to dismantle, the steel strands 6 penetrate through the embedded corrugated pipe 4 when the strength of the hinge joint concrete reaches 100%, the embedded corrugated pipe 4 cannot be moved, the steel strands 6 need to be pulled through a jack after penetrating, the embedded corrugated pipe is prevented from moving in the pulling process, the hinge joint concrete is enabled to be loose, the hinge joint concrete is made useless, and resources of the hinge joint concrete are wasted.
The device is characterized in that a prestressed steel strand reinforcing device is additionally arranged in a hollow plate hinge joint space, and when the device is required to be used, the device is shown in figure 1; an operator removes the original bridge deck pavement and hinge joint chiseling part 13 of the hollow slab, and finishes removing the bridge deck pavement and hinge joint chiseling part 13 on the surface of the hollow slab 1, as shown in fig. 2; an operator removes the hollow slab chiseling parts 14 on the two sides of the hollow slab 1 to enable the hollow slab 1 to be a vertical surface, and finishes the original bridge deck pavement of the hollow slab and the removal of the hinge joint chiseling part 13 and the hollow slab chiseling part 14; as shown in fig. 4, after an operator chisels the hollow plate hinge joint 12, the transverse width of the chiseling the hollow plate hinge joint 12 is 20-40cm, after chiseling the hollow plate hinge joint 12, a hinge joint stirrup 10 is arranged in the hollow plate hinge joint 12 at an interval of 10-12cm in the longitudinal direction, the diameter of the hinge joint stirrup 10 is 12-16mm, a hinge joint longitudinal steel bar 11 is arranged at the bottom edge and the quartering position of the annular inner side of the hinge joint stirrup 10, the diameter of the hinge joint longitudinal steel bar is 12-16mm, a corrugated pipe 4 needs to be embedded in the hollow plate hinge joint 12, an anchoring area 2 and a steering block 3 are arranged at the upper end and the lower end of the hollow plate hinge joint 12, after the chiseling, the operator installs a template of the hollow plate hinge joint 12 (when the hollow plate hinge joint 12 is fixed by hinge joint concrete, the hollow plate hinge joint template needs to assist in positioning the hinge joint concrete, the hollow plate hinge joint template can position the hollow plate hinge joint, the method comprises the steps of filling hinge joint concrete into a hollow plate hinge joint 12, so that the hinge joint concrete is not wasted, resource waste is reduced, pouring the hinge joint concrete, removing a template after the concrete strength reaches 80%, penetrating steel strands 6 into an embedded corrugated pipe 4 after the concrete strength reaches 100%, simultaneously tensioning two ends by using a jack, fixing the template in the hollow plate hinge joint 12 by using an anchorage device (removing the hollow plate hinge joint template when the hinge joint concrete strength reaches 80%, so that the hollow plate hinge joint template is not directly adhered to the surface of the hinge joint concrete, facilitating the detachment of the hollow plate hinge joint template, allowing the steel strands 6 to penetrate through the embedded corrugated pipe 4 when the hinge joint concrete strength is 100%, not moving the embedded corrugated pipe 4, and pulling two ends of the steel strands 6 through the jack after the penetration is completed, avoiding the movement of the pre-buried corrugated pipe in the pulling process, so that the hinge joint concrete is loosened, the hinge joint concrete is wasted, and the resources of the hinge joint concrete are wasted), and after the arrangement of the internal structure of the hinge joint 12 of the hollow plate is completed, as shown in fig. 3; the operator lays the bridge deck pavement 9 again, and the inside bridge deck pavement longitudinal reinforcement 7 and the bridge deck pavement horizontal reinforcement 8 of bridge deck pavement 9 are tied up hinge joint stirrup 10 and bridge deck longitudinal reinforcement 7 together, arrange the template and pour the bridge floor concrete, demolish the template after the concrete strength reaches 80%, accomplish the reinforcement construction of hollow slab beam bridge.
A method for reinforcing a prestressed steel strand by utilizing a hollow plate hinge joint space comprises the following steps:
the method comprises the steps of firstly, removing bridge deck pavement and hollow slab hinge joints on the surface of an original hollow slab, chiseling concrete on a web part of the hollow slab to enable the web to be a vertical surface, chiseling the surface of the concrete of the hollow slab, wherein the transverse width range of the chiseled hollow slab hinge joints is 20-40 cm.
And secondly, arranging hinge joint stirrups at intervals of 10-12cm in the longitudinal direction in the hinge joint of the hollow slab, wherein the diameter of the hinge joint stirrups is 12-16mm, hinge joint longitudinal reinforcements are arranged at the bottom edge and the quartering position of the annular inner side of the hinge joint stirrups, the diameter of the hinge joint reinforcements is 12-16mm, and a prestressed pipeline, an anchoring area, anchoring reinforcements and a steering block are required to be reserved (the hinge joint stirrups 10 and the hinge joint longitudinal reinforcements 11 are uniformly distributed in the hinge joint 12 of the hollow slab, so that the longitudinal bending resistance and the transverse overall stress performance of the hinge joint 12 of the hollow slab can be improved when the hinge joint 12 of the hollow slab is stressed, cracks cannot be easily generated in the hinge joint 12 of the hollow slab or the hinge joint 12 of the hollow slab can not be directly damaged, the stability of the whole hollow slab beam.
Step three, installing a template of the hollow plate hinge joint, pouring hinge joint concrete, removing the template after the concrete strength reaches 80%, penetrating a steel strand into the pre-embedded corrugated pipe after the concrete strength reaches 100%, simultaneously tensioning the two ends of the steel strand by using a jack, and fixing the steel strand in the hollow plate hinge joint by using an anchorage device (the hollow plate hinge joint template can position the hollow plate hinge joint so that the hinge joint concrete can be quickly filled into the hollow plate hinge joint, thereby avoiding the waste of the hinge joint concrete and reducing the waste of resources, namely, removing the hollow plate hinge joint template when the hinge joint concrete strength reaches 80%, preventing the hollow plate hinge joint template from being directly adhered to the surface of the hinge joint concrete, facilitating the detachment of the hollow plate hinge joint template, enabling the steel strand to pass through the pre-embedded corrugated pipe when the hinge joint concrete strength reaches 100%, avoiding the movement of the pre-embedded corrugated pipe, and the steel strand wires still need to be pulled to its both ends through the jack after passing the completion, avoids making pre-buried bellows produce the removal at the pulling in-process to make hinge joint concrete not hard up, thereby make it useless, waste its resource).
And fourthly, laying the bridge deck pavement longitudinal reinforcing steel bars and the transverse reinforcing steel bars again, binding the hinge joint stirrups with the bridge deck longitudinal reinforcing steel bars together, arranging the templates and pouring bridge deck concrete, removing the templates after the concrete strength reaches 80%, completing the reinforcing construction of the hollow slab beam bridge, binding the hinge joint stirrups with the bridge deck longitudinal reinforcing steel bars together, enabling the hinge joint space and the bridge deck pavement to be integrated, and improving the longitudinal bending resistance and the transverse overall stress performance of the hollow slab beam bridge.
The device makes full use of the hinge joint space to add the prestressed steel hinge to reinforce the hollow slab beam, can improve the longitudinal bending resistance and the transverse integral stress performance of the hollow slab beam bridge, can eliminate the disease hidden danger of the traditional hinge joint cracking and failure, reduces the management and maintenance cost during later operation, and has great technical, economic and social benefits.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A prestressed steel strand reinforcing device is additionally arranged in a hollow plate hinge joint space and comprises hollow plates and hollow plate hinge joints, and is characterized in that the hollow plate hinge joints are arranged between the adjacent hollow plates, hinge joint stirrups are uniformly arranged in the hollow plate hinge joints, and hinge joint longitudinal reinforcements are arranged on the inner sides of the hinge joint stirrups;
an embedded corrugated pipe is further arranged inside the hinge joint of the hollow plate, and one end of the embedded corrugated pipe is provided with an anchor steel bar;
the surface of hollow core slab is equipped with the anchor district, the bottom surface of hollow core slab is equipped with turns to the piece, the steel strand wires pass pre-buried bellows.
2. The device for reinforcing the prestressed steel strand by using the hinge joint space of the hollow slab as claimed in claim 1, wherein the surface of the hollow slab is further provided with a bridge deck pavement, and the bridge deck pavement is internally provided with the longitudinal bridge deck pavement reinforcing steel bars and the transverse bridge deck pavement reinforcing steel bars.
3. The device for reinforcing the prestressed steel strand by utilizing the hinge joint space of the hollow plate as claimed in claim 1, wherein the hinge joint stirrups are distributed at intervals of 10-12cm inside the hinge joint of the hollow plate, and the hinge joint longitudinal steel bars are arranged at the positions of the annular inner bottom edge and the quartering point of the hinge joint stirrups.
4. The device for reinforcing the prestressed steel strand by utilizing the hinge joint space of the hollow plate as claimed in claim 1, wherein the diameter of the hinge joint stirrup and the diameter of the hinge joint longitudinal steel bar are both 12-16 mm.
5. The device for reinforcing the prestressed steel strand by utilizing the hinge joint space of the hollow plate as claimed in claim 1, wherein the hinge joint of the hollow plate is fixed by pouring hinge joint concrete after the position fixing of the hinge joint stirrups, the hinge joint longitudinal steel bars, the pre-embedded corrugated pipe, the anchoring area and the steering block is completed.
6. The device for reinforcing the prestressed steel strand by utilizing the hinge joint space of the hollow plate as claimed in claim 5, wherein the hinge joint of the hollow plate requires a hinge joint template of the hollow plate to assist in positioning the hinge joint concrete when the hinge joint is fixed by the hinge joint concrete.
7. The device for reinforcing the prestressed steel strand by utilizing the hinge joint space of the hollow plate as claimed in claim 6, wherein the hinge joint concrete is used for removing the hinge joint template of the hollow plate when the strength reaches 80%, and the steel strand penetrates through the embedded corrugated pipe after the strength of the hinge joint concrete reaches 100%.
8. The device for reinforcing the prestressed steel strand by using the hinge joint space of the hollow slab as claimed in claim 6, wherein chiseling parts are provided at both ends of the hollow slab.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643602.3U CN211312247U (en) | 2019-09-29 | 2019-09-29 | Prestressed steel strand reinforcing device additionally arranged in hollow plate hinge joint space |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921643602.3U CN211312247U (en) | 2019-09-29 | 2019-09-29 | Prestressed steel strand reinforcing device additionally arranged in hollow plate hinge joint space |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541369A (en) * | 2019-09-29 | 2019-12-06 | 辽宁省交通规划设计院有限责任公司 | Device and method for additionally arranging prestressed steel strand in hollow plate hinge joint space |
| CN112591599A (en) * | 2021-03-04 | 2021-04-02 | 中冶建筑研究总院有限公司 | Anti-fatigue prestressed variable-section steel crane beam and manufacturing method thereof |
| CN112626998A (en) * | 2021-01-06 | 2021-04-09 | 中冶南方城市建设工程技术有限公司 | Bridge with bridge hollow slab connecting device and construction method thereof |
-
2019
- 2019-09-29 CN CN201921643602.3U patent/CN211312247U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541369A (en) * | 2019-09-29 | 2019-12-06 | 辽宁省交通规划设计院有限责任公司 | Device and method for additionally arranging prestressed steel strand in hollow plate hinge joint space |
| CN112626998A (en) * | 2021-01-06 | 2021-04-09 | 中冶南方城市建设工程技术有限公司 | Bridge with bridge hollow slab connecting device and construction method thereof |
| CN112591599A (en) * | 2021-03-04 | 2021-04-02 | 中冶建筑研究总院有限公司 | Anti-fatigue prestressed variable-section steel crane beam and manufacturing method thereof |
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